using System;

namespace ServiceStack.Text;

public class Tracer
{
    public static ITracer Instance = new NullTracer();

    public class NullTracer : ITracer
    {
        public void WriteDebug(string error) { }

        public void WriteDebug(string format, params object[] args) { }

        public void WriteWarning(string warning) { }

        public void WriteWarning(string format, params object[] args) { }

        public void WriteError(Exception ex)
        {
            if (JsConfig.ThrowOnError)
                throw ex;
        }

        public void WriteError(string error)
        {
            if (JsConfig.ThrowOnError)
                throw new Exception(error);
        }

        public void WriteError(string format, params object[] args)
        {
            if (JsConfig.ThrowOnError)
                throw new Exception(string.Format(format, args));
        }
    }

    public class ConsoleTracer : ITracer
    {
        public void WriteDebug(string error)
        {
            PclExport.Instance.WriteLine(error);
        }

        public void WriteDebug(string format, params object[] args)
        {
            PclExport.Instance.WriteLine(format, args);
        }

        public void WriteWarning(string warning)
        {
            PclExport.Instance.WriteLine(warning);
        }

        public void WriteWarning(string format, params object[] args)
        {
            PclExport.Instance.WriteLine(format, args);
        }

        public void WriteError(Exception ex)
        {
            PclExport.Instance.WriteLine(ex.ToString());
        }

        public void WriteError(string error)
        {
            PclExport.Instance.WriteLine(error);
        }

        public void WriteError(string format, params object[] args)
        {
            PclExport.Instance.WriteLine(format, args);
        }
    }
}

public static class TracerExceptions
{
    public static T Trace<T>(this T ex) where T : Exception
    {
        Tracer.Instance.WriteError(ex);
        return ex;
    }
}